Reflector for automobile lamps



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. C. A. MICHEL REFLECTOR FOR AUTOMOBILE LAMPS Filed Jan. 5, 1922. ZSheets-Sheet l h w/a; I

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' C. A. MICHEL REFLECTOR FOR AUTOMOBILE LAMPS Filed Jan. '5, 1922 aSilesia-Sheet 2 MMXMM a citizen of the United States, residing atPatented Nam, 1924.

. N ED' STATES!PATENTQOFFICE.

omnnnoln a. 111cm, or onnvnmnn, onro, Assmnon To run sums moron LureMANUFACTURING- COMPANY, OF

CLEVELAND, OHIO, CORPORATION OF OHIO. I

nnnnn'roa non anrolromnn Lam's. i

To all whom it mag concern:

Be itv known that I, Cnmnon A. MICHEL,

Cleveland, in the county of Cuyahoga and State of Ohio, have invented a,'certaminew and useful Improvementin Reflectors forf Automobile Lamps,of which'thejollowing' is a full, clear, and exact description,reference being bad to the accompanyingdraw ings. I

This invention relates "generally to'automobile headlights and moreparticularly to anovel construction of reflector used in said lamps, theobjectbeing tolimprove the beam of light as it emanates'from the lamp.

road illumination by properly spreading the Various devices have beenemployed to eliminate the glare in. the ordinary automobile headlightand in doing so the proper road illumination has suffered to some ex:tent due to the fact that not enough lateral spread of the beam has beenhad togivethe proper width of .road illumination, both close to the carand in advanceof the same and the -object of the present invention istoovercome this objection and provide a reflector which-will give a widedispersion of the light rays and these widelydiver rays can becontrolledby any suitable F of screen to cut out the glare, and withoutligterfering with the lateral spread of the The invention consists inthenovel tures of construction hereinafter fully described and pointedout in the claims. In 1 the drawings forming apart of thisspecification'Fig. 1 is a face view of a. reflector constructed inaccordancewith my-invention; Fig. 2 is a horizontal sectional View ofthe same, the lamp being shown in plan:

Fig. 3 is a vertical sectional view-of the reflector, the lamp beingshown inelevation and Figs. 4,.5, 6, 7, 8, 9 and 10*are detail sectionalviews showing various waysin which the reflector body can be corrugated,ribbed or fluted.

Referring to the drawings, 20 indicates the source of light which is theordinary incandescent lamp fixed in the socket 21 and the light ispreferably arranged at the focal point of the reflector 22 which ispreferably made of sheet metal and may be a conic section or the surfacemaybe gen erated by a variable parabola, a variable hyperbola, or avariable semi-ellipse, or any combination thereof.

1 m tal... axed 'nnuu jafiaaz. Serial ira'szem.

linespmduced by passing planes through the 'reflector"which planes areobliqueto the axis of the reflector but are perpendicular to the.roa'dwa'y.

In this manner a series of corrugations, ribs or flutes 23 can beproduced "which diverge either outwardly or inwardly and downwardly andalso either outwardly or inwardly and upwardly, the corrugations, ribsor flutes being on curved lines as most clearly shown in Fig. 1. Bymeans of a reflector constructed-in this manner I- am. ableto get alarge amount of. lateral'ispread of .the reflected rays and.therebyi'materially improve the road illumination. In Fig. 4 thereflecting-surface between the ribs is concaved as 'show'n at 24, andconvexed at' 25 in Fig. 5, undulatingnt 26- in. Fig. 6, and. zigzag at.21in Fig. 7 and, in Figs.

cations with broader surfaces between the .ribs' or corrugations. v InFigure 8 the ribs or corrugations are projected rearwardly as .jectedforwardly-as shown at 29 an in Figure 10, merely'angles 30 are shown11nd no ribs whatever ribs in Figures 8- and 9 and between the angles inFigure. 10 are wider and flatter than the spaces between the ribs inFigures 4:, 5.6 and 7. It will thus'be-seen that a. arge variety ofcorrugations or ribs can .be had but all 'upon the same general Ian;

that is, ,in planes oblique to the re ector; axis and perpendicular withthe roadway.

Havingthuswhat I claim is':-

1.. In a lamp, .a.ribbed'reflector, the ribs being located inplaneswhich pass obliquely' through the axis of the reflector, saidplanes being perpendicular to a horizontal plane passing through thereflector.

2. In a-la-mp, a. ribbed reflector, the ribs being located in planeswhich pass obliquel v through the axis of the reflector, said planesbeing pe ndicular to a. horizontal plane passing t rough the reflector,said oblique planes converging rearwardly.

described my invention,

In testimony whereof, I hereunto aflixmy signature.

gmnnnon A. lflQHEL.

butt-he spaces betweenthe

